CVE Vulnerability

CVE-2020-15236

In Wiki.js before version 2.5.151, directory traversal outside of Wiki.js context is possible when a storage module with local asset cache fetching is enabled. A malicious user can potentially read any file on the file system by crafting a special URL that allows for directory traversal. This is only possible when a storage module implementing local asset cache (e.g Local File System or Git) is enabled and that no web application firewall solution (e.g. cloudflare) strips potentially malicious URLs. Commit 084dcd69d1591586ee4752101e675d5f0ac6dcdc fixes this vulnerability by sanitizing the path before it is passed on to the storage module. The sanitization step removes any directory traversal (e.g. `..` and `.`) sequences as well as invalid filesystem characters from the path. As a workaround, disable any storage module with local asset caching capabilities such as Local File System and Git.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/Requarks/wiki/commit/084dcd69d1591586ee4752101e675d5f0ac6dcdc Patch Third Party Advisory
https://github.com/Requarks/wiki/security/advisories/GHSA-whpv-5xg2-w527 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:requarks:wiki.js:*:*:*:*:*:*:*:*
Information

Published : 2020-10-05 03:15

Updated : 2020-10-09 05:06

NVD link : CVE-2020-15236

Mitre link : CVE-2020-15236

Products Affected
No products.
CWE
CWE-22